Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Chapter 12 vocab

### Surface area and volume of solids

Term | Definition |
---|---|

polyhedron | A solid that is bounded by polygons, called faces, that enclose a single region of space |

platonic solids | Five regular polyhedrons, named after the Greek mathematician and philosopher Plato |

cross selection | The intersection of a plane and a solid |

prism | A polyhedron with two congruent faces, called bases, that lie in parallel planes |

surface area | The sum of the area of the faces of a polyhedron or other solid |

lateral area | The sum of the areas of the lateral faces of a polyhedron or other solids with one or two bases |

net | The two-dimensional representation of the faces of a polyhedron |

right prism | A prism in which each lateral edge is perpendicular to both bases |

oblique prism | A prism with lateral edges that are not perpendicular to the bases |

cylinder | A solid with congruent circular bases that lie in parallel planes |

right cylinder | A cylinder in which the segment joining the center of the bases is perpendicular to the bases |

pyramid | A polyhedron where the base is a polygon and the lateral faces are triangles with a common vertex |

regular pyramid | A pyramid that has a regular polygon as a base and in which the segments joining the vertex and the center of the base is perpendicular to the base |

cone | A solid that has one circular base and a vertex that is not in the same plane as the base |

right cone | A cone in which the segment joining the vertex and the center of the base is perpendicular to the base |

volume | The number of cubic units contained in the interior of a solid |

sphere | The set of all points in space equidistant from a given point called the center of the sphere |

great circle | The intersection of a sphere and a plane that contains the center of a sphere |

hemisphere | Half of a sphere, formed when a great circle separates a sphere into two congruent halves |

similar solids | Two solids of the same type with equal ratios of corresponding linear measures |

Created by:
calistaB